> Our ptrace jailer is checking cs to figure out if a task is a compat task > or not, if the kernel can change that behind our back it means our jailer Every user program change it behind your back. Your ptrace jailer isn't. > I think this behaviour is so unexpected that it can only cause security > problems in the long run. Is anyone counting on this? Where is this > behaviour documented? Look up far jumps in any x86 manual. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html